Power-transmitting device for automobiles.



ILES.

APPLICATION FILED NOV. 17, 1910.

Patented June 20, 1 911.

2 SHEETS-SHEET 1.

amen '06 B. TUL'LY. POWER TRANSMITTING DEVICE FOR AUTOMOBILES.

APPLIGATION FILED NOV. 17, 1910.

Patented June 20, 1911.

2 SHEETS-SHEET 2.

wwnImdeo."

UNITED STATES 'ATENT BERNARD TULL Y, OF TIEFIN, OHIO.

POWER-TRANSMITTING 'DEVICE FOR AUTOMOBILES.

Specification of Iietters Patent. Patentetl June 20, 1911.

Application filed November 17, 1910. Serial No. 592,905.

. To all whom iii-may concern:

Be it knownthat I, BERNARD TULLY, of Tiflin, in the county of Seneca and in the State of Ohio, have invented a certain new and useful Improvement in Power Transmitting Devices for Automobiles, and do hereby declare that the following is'a full,-

clear, and exact description thereof.

My invent-ion relates to power transmit ting devices designed more especially for driving the front or steering axle of automobiles, and the object of my invention is to provide a less expensive and moreeiiicient device forthis purpose, and for the attainmentof the object of my invention said invention consists inthe device constructed substantially as hereinafter specified and claimed.

Referring to the accompanying drawings-Figure 1 is a longitudinal section of enough of an automobile to illustrate anembodiment of my invention; Fig; 2 is a top plan view of the front axle and its appurtenant parts; and Fig. 3 a-horizgntal section.

I-have had particularly in view the adap- I tation of my invention to plow vehicles and other motor driven farm implements and in -the embodiment of my invention which I have selected as an illustration thereof, there is a motor driven shaft 10 running longitudinally of the vehicle and geared to both the front and the rear axles for the transmission of power to both said axles. The gear connection between the shaft 10 and the rear axle includes a worm 11 meshing with a .worm Wheel 12 keyed to the rear axle 13 while, the-gear connection with the shaft 10 and the'front axle, which is the steering axle,consists of a worm 14 on the shaft that meshes with a worm wheel 15 having a loose or swiv'eled connection with the front axle 16, presently described, whereby the front axle may swing or oscillate for steering purposes independently of the worm wheel 15. .jOf course the loose or flexible connection between-the worm wheel and the axle may be employed in the case of the rear axle 13 should it. b e-desired.

The'wormwheel 15 has" a hub 17 through which the axle passes and to which it is rigidly keyed or otherwise secured, and said hub is preferabl 'olygonalor flat sided in cross section and ffom the fiat sides thereof spokes 18 extend tothe rim of the wheel 15, each spoke 18 being pivotally connected, as by means of a screw or bolt 19 with the hub side,so that the spokemay swing in a plane'parallel with the longitudinal axis of the axle, and each spoke at its outerend has a pivoted or swiveled connection with the wheel rim which allows the wheel hub, to-

gether with its axle to swing so as to rovide for the accommodation of the'posltion of the parts required by the swinging of the axle. It willbe observed that the spokes extend from the hub tangentially so that they are not radial to the axle axis. As a result of this arrangement of the spokes there is no shortening or drawing of the spokes out of the wheel rim sockets in aturning movement and the hub -can be'a large substantial body.

The front axle 16 passes throu h boxes 4 or bearings 20 on opposite sides of t e wheel shaft and the axle, comprising a wheel rim, a

hub secured to the axle, and spokes extending from the hub tangentially to the rim,

a pivotal connection between the inner ends of said spokes and the hub and a pivotal connection between the outer ends of the spokes and the rim.

power shaft, gearing between the ower shaft and the axle, comprising a whee rim, a hub secured to the axleg'and spokes extend- 2. The combination with a vehicle axle, a

ing from the hub tangentially to the rim, a

pivotal connection between the inner ends of In testimony that I claim the foregoing I said spoies and (31136 hub and a givflatal'conhave hereunto set my hand.

ne'ction 'etween t e oat'er ends 0 t e spokes v and' the rim, a fifth wheel comprising a BERNARD TULLX' track, and a support for said track extend- Wilnesses: 111g from the. axle on each slde of sand wheel NORMAN WV. PETERS, mm. RUSHTON D. NILns.

Copies of'thiS patent may be obtained for five cents each, by addressing the Commissioner of Patents,

-' Washington, D. C." 

